Osteospermum plant named &#39;DOSTICWHTB&#39;

ABSTRACT

A new and distinct  Osteospermum  cultivar named ‘DOSTICWHTB’ is disclosed, characterized by spreading growth habit, good garden performance during summer and large white flowers with purple eye. The new variety is an  Osteospermum , normally produced as an outdoor garden or container plant.

LATIN NAME OF THE GENUS AND SPECIES

Osteospermum ecklonis

VARIETY DENOMINATION

‘DOSTICWHTB’

BACKGROUND OF THE INVENTION

The new Osteospermum cultivar is a product of a planned breeding program conducted by the inventor, Gavriel Danziger, in Moshav Mishmar Hashiva, Israel. The objective of the breeding program was to produce new Osteospermum varieties for ornamental commercial applications. The open pollination resulting in this new variety was made during January of 2011.

The seed parent is the unpatented, proprietary variety referred to as Osteospermum ‘OS-11-2010’. The pollen parent is unknown as it was an open pollination breeding program. The new variety was discovered in March of 2012 by the inventor in a group of seedlings resulting from the 2011 crossing, in a research greenhouse in Moshav Mishmar Hashiva, Israel.

Asexual reproduction of the new cultivar was performed by vegetative cuttings. This was first performed at a research greenhouse in Moshav Mishmar Hashiva, Israel in April of 2012 and has shown that the unique features of this cultivar are stable and reproduced true to type in more than 10 successive generations.

SUMMARY OF THE INVENTION

The cultivar ‘DOSTICWHTB’ has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, day length, and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘DOSTICWHTB’ These characteristics in combination distinguish ‘DOSTICWHTB’ as a new and distinct Osteospermum cultivar:

-   1. Large white flowers with purple eye. -   2. Trailing growth habit. -   3. Good garden performance during the summer.

Plants of the new cultivar ‘DOSTICWHTB’ are similar to plants of the seed parent, Osteospermum ‘OS-11-2010’ in most horticultural characteristics, however, plants of the new cultivar ‘DOSTICWHTB’ differ in the following:

-   1. Plant habit is more trailing. -   2. Tends to blush under low temperatures. The seed parent does not.

COMMERCIAL COMPARISON

Plants of the new cultivar ‘DOSTICWHTB’ are comparable to the unpatented commercial variety Osteospermum ‘Astra White’. The two Osteospermum varieties are similar in most horticultural characteristics; however, the new variety ‘DOSTICWHTB’ differs in the following:

-   1. Much larger flowers. -   2. Flowers later. -   3. Trailing growth. The comparator growth is erect and compact. -   4. Flower with pink center. The comparator flower center is white.

Plants of the new cultivar ‘DOSTICWHTB’ are comparable to the commercial variety Osteospermum ‘DOSTICPWHT’, filed concurrently. The two Osteospermum varieties are similar in most horticultural characteristics; however, the new variety ‘DOSTICWHTB’ differs in the following:

-   1. Plants of ‘DOSTICWHTB’ are somewhat larger than plants of     ‘DOSTICPWHT’. -   2. Mature disc florets of ‘DOSTICWHTB’ are Violet-Blue and White     compared to White and Purple disc florets of ‘DOSTICPWHT’. -   3. Foliage of ‘DOSTICWHTB’ is on average larger than foliage of     ‘DOSTICPWHT’. -   4. Flowers of ‘DOSTICWHTB’ are on average smaller than flowers of     ‘DOSTICPWHT’

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photograph in FIG. 1 illustrates in full color a typical plant of ‘DOSTICWHTB’ grown outdoors, in a 12 cm pot. Age of the plant photographed is approximately 12 weeks from a rooted cutting. FIG. 2 illustrates a close up of a flower. The photographs were taken using conventional techniques and although colors may appear different from actual colors due to light reflectance it is as accurate as possible by conventional photographic techniques.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Mini Colour Chart 2001 except where general terms of ordinary dictionary significance are used. The following observations and measurements describe ‘DOSTICWHTB’ plants grown in the Autumn and Winter, in a greenhouse, in Moshav Mishmar Hashiva, Israel. The growing temperature ranged from 15° C. to 26° C. during the day and from 7° C. to 13° C. during the night. General light conditions are bright, normal sunlight. Measurements and numerical values represent averages of typical plant types.

-   Botanical classification: Osteospermum ‘DOSTICWHTB’. -   Propagation:     -   -   Time to rooting.—14 days at approximately 18-22° C.         -   Root description.—Fibrous. -   Plant:     -   -   Age of plant described.—Approximately 100 days from a rooted             cutting.         -   Growth habit.—Spreading.         -   Height.—Approximately 20 cm.         -   Plant spread.—Approximately 50 cm.         -   Growth rate.—Moderate growth rate.         -   Branching characteristics.—Freely branching.         -   Length of lateral branches.—Approximately 23 cm.         -   Diameter of lateral branches.—Approximately 1.0 cm.         -   Texture of lateral branches.—Glabrous.         -   Internode length.—Approximately 0.8 cm.         -   Strength of lateral branches.—Flexible.         -   Color of lateral branches.—Near RHS Yellow-green group 145             C.         -   Aspect/angle of branches.—30°.         -   Number of leaves per lateral branch.—Approximately 70. -   Foliage:     -   -   Leaf.—Arrangement: Opposite Average Length: Approximately             7 cm. Average Width: Approximately 2.3 cm. Shape of blade:             Oblanceolate Apex: Acute Base: Cuneate Attachment: Absent             Margin: Serrate Texture of top surface: Glabrous, leathery.             Texture of bottom surface: Glabrous. Appearance top surface:             Shiny Appearance bottom surface: Matte Leaf internode             length: Approximately 0.5 cm. Color: Young foliage upper             side: Near RHS Green 137 A Young foliage under side: Near             RHS Green 137 C Mature foliage upper side: Near RHS Green             N137 A Mature foliage under side: Near RHS Green 137 C             Venation: Type: Parallel, Only the main vein is visible             Venation color upper side: Near RHS Green 142 A Venation             color under side: Near RHS Yellow-green 144 D.         -   Petiole.—Absent. -   Flower:     -   -   Bud.—Bud shape: Oblate Bud length: Approximately 1 cm. Bud             diameter: Approximately 1 cm. Bud color: Near RHS             Yellow-green 144 C.         -   Inflorescence.—Form: Daisy-type inflorescence form with             oblanceolate-shaped ray florets. Inflorescences positioned             above and beyond the foliage; inflorescences terminal and             axillary. Disc and ray florets developing acropetally on a             capitulum. Inflorescences face mostly upright to outward.         -   Flower.—Diameter of entire flower: Approximately 8 cm. Depth             of flower: Approximately 0.4 cm. Width of disc:             Approximately 1.3 cm. Depth of disc: Approximately 0.5 cm             Receptacle Diameter: 1 cm Receptacle Height: 0.5 cm.         -   Ray florets.—Number of Ray Florets: Avg. 24 Length:             Approximately 3.5 cm. Width: Approximately 1 cm. Apex shape:             Acute Margin: Entire.         -   Color.—Ray Florets Upper surface at first opening: Near RHS             White NN155 C Upper surface at maturity: Near RHS White             NN155 D Upper surface at fading: Near RHS Red-purple 69 D             Under surface at first opening: Near RHS Purple-violet N80 C             Under surface at maturity: Near RHS Purple 76 C. With vine             Near RHS Greyed-green 188 C Under surface at fading: Near             RHS Purple 76 A Disc Florets Number of Disc Florets: Average             140 Length: Approximately 0.6 cm. Width: Approximately             0.1 cm. Shape: Bell shaped — campanulate Margin: Entire At             first opening: Near RHS White 155 B and Violet-blue 93 A At             maturity: Near RHS Violet-blue N92 B and White 155 B At             fading: Near RHS Yellow 13 A.         -   Fragrance.—None.         -   Phyllaries.—Number: Approximately 19 Length: Approximately             1.1 cm. Width: Approximately 0.2 cm. Shape: Ligulate             Texture: Rough Apex shape: Acuminate Margin: Entire. Color:             Near RHS Yellow-green 146 A.         -   Peduncle.—Peduncle length: Approximately 3 cm Peduncle             diameter: Approximately 0.2 cm. Angle: Approximately 0° from             center of whorl. Color: Near RHS Yellow-green 147 B Peduncle             texture: Pubescent. -   Reproductive organs:     -   -   Disc florets.—Androecium: Stamens: 120-140 Anther shape:             Elliptical Anther length: Approximately 0.4 cm. Anther             color: Near RHS Red-purple 72 A Pollen quantity: Abundant             Gynoecium: Not present. Pistils in disc flowers are             degenerated and non-functional.         -   Ray florets.—Androecium: Not present. Stamens in ray flowers             are degenerated and non-functional.         -   Gynoecium.—Pistil number: One pistil per ray floret —             Approximately — 26 Pistil shape: Needle shape Pistil length:             Approx.0.3 cm Style length: Approx. 0.1 cm. Style color:             Near RHS Purple 76 C Stigma shape: Bipartite Stigma color:             Near RHS Purple 79 D Ovary diameter: 0.1 cm Ovary color:             Near RHS Yellow-green 150 B. -   Other characteristics:     -   -   Disease resistance.—Neither resistance nor susceptibility to             normal diseases and pests of Osteospermum have been             observed. Typical diseases of Osteospermum include:             Botrytis, Pythium, Phytopthera, Rhizoctonia. Typical pests             found in Osterspermum include various species of Aphid,             Fungus Gnats and Thrips.         -   Drought tolerance and cold tolerance.—Good tolerance for             heat, to at least 40° C. Drought tolerant.         -   Fruit/seed production.—Seed set has been observed. Shape:             Elliptic. Color: Near RHS Grey-Brown N199 B Size: Length:             0.5 cm. Diameter: 0.15 cm. 

What is claimed is:
 1. A new and distinct cultivar of Osteospermum plant named ‘DOSTICWHTB’ as herein illustrated and described. 